The most common forms included beech-like trees, poplars, willows, cattails, sumac, soapberry, and conifers such as pines, sequoias, and false cypress.

Juniper trees are common throughout the canyon as well as mesquite, cottonwood, salt cedar, willow, western soapberry and hackberry.

Streams, although they may flow only intermittently, help support the growth of several trees, among them blue palo verde, mesquite, velvet ash, small-leaved mulberry, netleaf hackberry, and soapberry.